Improvement in boilers for stoves



W. M'CILVAIN.

BOILER FOR. STOVE.

N,17Z,143, Patented Jan.11., 1876.

FICH.

UNITED STATES PATENT OFFICE..

WILLIAM MCILVAIN, oE PHILADELPHIA, PENNsYLvANIAl IMPROVEMENT IN BOILERS FOR STOVES.

Specification forming part of Letters Patent No. 172,143, dated January 11, 1876; application filed December 21, 1875.

To all whom 'itmag/ concern:

. Be it known that I, WILLIAM M oILvAIN, ot' the city and county of Philadelphia, in the State of Pennsylvania, have invented anew and useful Improvelnentin Boilers for Stoves, Ranges, 821e., which improvement is fully set forth in the following specification, reference being had to the accompanying drawings. My invention consists in the combination, with a stove, range, o'r other heater, of a boiler, having a ease which forms a hot-air ue all around it, and feed and exit pipes, an opening through the bottom of the case communicating with the stove op range, and a collar for the connection of the smokefpipe with the top vplate of the case, whereby the products of combustion, as they ascend into said hot-air iine from the stove or range, or other heater, circulate around the boiler as they ascend through the iiue into the smoke-pipe, and thereby heat the water in the boiler, -as herenat'ter fully described.

In the accompanying drawings, Figure l is a plan view of my improved boiler. Fig. 2 is a vertical section at the lille a" x of Fig. 1. Fig. 3 is a like view at the line y y of Figs. 2 and 4. Fig. 4 is a horizontal section at the line z a of Fig. 2. Fig. 5 is a front elevation.

Like letters of ret'erence in all the figures indicate the same parts.

A is the boiler, and B a metallic case of such form and dimension when connected with it as to form a flue, a, all around it for the passage of the products of combustion from the stove or other heater. G is the top plate The of an ordinary flat-top cooking-stove.

vis thefeed-pipe through which the cold water.

tlows into the lower part of tlie boiler, and F the exit-pipe through which the hot water passes from the upper part of the boiler to the bathroom, or from which it is drawn for culinary or other purposes.

In the drawings the boiler is represented as held up in its place in the case B by means of cleats or projecting arms of the case. It may, however, .be held up in any other convenient manner. H is a door in the front of the case B, for the purpose of forming a passage for the rremoval of the boiler A for cleaning it out.

I claim as my invention- The combination of the boiler A, having an induction or feed pipe, D, andan exit-pipe, F,

and the case B, having collars b and b2, with the top-plate C, of a stove or other hea-ter, having a collar, bl, substantially in 4the manner and for the purpose set forth.

WILLIAM MC'ILVAIN. Witnesses;

STEPHEN UsTIoK, P. V. WEAVER. 

